Drain cock for radiators



Jan. 31, 1928.

H. C. GREEN Filed April 6 192' Patented Jan. 3 1, 1928.

PATENT oF Fics.

HENRY G. GREEN, OF PORT, OKLAHDMA.

DRAIN COOK FOR RADIATORS.

Application filed April 6,

This invention relates to automobile ac-.

- prevented from freezing in the radiator but the drain cock is so located thatit may not be easily reached. and in addition a person is liable to have his clothes soiled by grease when attempting to open or close the drain cock.

Therefore, one object to provide a radiator drain cock having actuating means, one element of which extends through the instrument board of an automobile where it may be easily reached by the operator without leaving the drivers seat.

Another object of theinvention is to so form the drain cock that a control plug "for its water passage will be yieldably held in a closed position and not liable to be accidentally opened.

Another object of the invention is to prevent the drain cock from becoming choked by sediment passingthrough it from the radiator.

Another object of the invention is to provide an improved radiator drain cock which may be substituted for aconventional drain cock usually provided upon automobile radiators and have a portion of its control mechanism suspended from the engine of the automobile.

Fhe invention is illustrated in the accompanying drawing, wherein Figure 1 is a view showing the improved drain cock applied to the radiator of an automobile;

Fig. 2 is an enlarged longitudinal sectional view through the drain cock, and

Fig. 3 is a perspective view of a bracket forming part oi the actuating mechanism.

The improved drain cock is intended to be used uponfthe radiator 1 of an automobile in place of a conventional drain coclr and includes a body portion 2 which is preferably spherical in shape and provided with a threaded neck 3 to be screwed into the outlet opening of the radiator. A fluid passage 4 extends through the body portion 2 axially of the neck 3 and is intersected by a bore or passage 5 which extends through the body transversely oi the passage t and axially through an arm 6 projecting from the body of the invention is Serial No. 181,519.

intermediate its depth. By referring to Fig. 2, it will be seen that the portion of the bore 5 which extends through the body 2 is tapered away from the neck or arm 6 and receives a plug 7 which has a wedging lit in the tapered portion of the bore 5 and serves to very effectively close the fluid passage a when shut. A stem 8 projects from the plug 7 through the bore of the arm 6 and is formed with a longitudinally extending slot 9 through which passes a pin 10 to limit longitudinal sliding movement of the stem and plug. The pin 10 also constitutes a bearing for one end of: a spring 11 disposed about the stem 8 with its other end portion passed through an opening 12 formed in the stem adjacent the plug. Therefore, the spring serves to yieldably retain the plug in the closed position shownin Fig. 2 but permits it to be drawn to an open position in order to allow water to pass through the fluid pas sage 4. and thereby drain out oi the radiator. ll liile the passage 4 constitutes the main fluid passage, it will be obvious that some of the water will pass through the open outer end of the bore 5 and thereby allow the radiator to be quickly drained. An opening 18 is formed in the arm 6 intermediate its ends so that any sediment which may pass into the portion of the bore 5 extending through the arm 6 or dust or dirt which may enter the arm through its open end may pass out of the armithrough the opening. By this arrangement accumulation of dirt or sediment in the arm will beprevented and the arm will not be liable to become choked. There i'ore, proper opening or closing of the plug will not be interfered with.

In order to move the plug to an open position without reaching under the radiator, I have provided actuating means intended to be operated by the driver of an automobile without leaving the drivers seat. The actuating means includes a bracket lt disposed vertically at one side of the engine 15 and having its upper end formed with an opening 16 to receive a securing bolt 17. By referring to Fig. 1 it will be seen that the bolt 17 constitutes one of the fasteners for a manifold pipe 18 leading from the water jacket of the engine to the radiator. At its: lower end the bracket 14 carries a foot 19 which projects outwardly therefrom transversely oi the engine and carries a lever 20 having openings 21 and 22 formed therein. A drawrod 23 has one end engaged in an opening 24- toward an open position in opposition to the easil 'r'as Jed. and the rod drawn rearwardl i to swing the lever 20 rearwardly and draw uponthe link or rod 23 to move the plug action of the spring 11. It will thus be seen that by this arrangement the driver of an automobile can be grasping the head 25 and drawing upon the rod 26 move the plug to an open position and allow the water to drain out of the radiator without leaving the drivers seat. This makes it unnecessary for him to reach underthe radiator with resulting danger of soiling his clothes by con tact with greasy portions oi? the automobile. The openings in the dashboard 27 and instrument board will be of such dimensions that the rod may have movement in a vertical plane as it moves longitudinally. i" tongue 30 is cut from the arm 19 and bent up wardly into position to engage the lever and limit rearward swinging movement thereof. It W1ll thus be seen that the lever may not bracket carried by said motor at one side thereof and havinr an outwardl extending p o p b foot, anarm p voted the rootot said bracket and prqectmg; outwardly from the motor, a connect on between said arm'and plug, and an actuating element connected ,to said arm and extending rearwardly therefrom and when movedlongitudinally in one direction impartingmovement to said arm to movethe plug t-oan opened position.

, 2. Awater cooled motor, a radiator for said motor, a'dra-in cock for said radiator having a control plug slidable longitudinally of the motor into and outof a closed position and yieldably held closed, a bracket carried by said motor, an arm pivoted tosaid bracket and projecting; transversely from said motor, a connection between said arm and plug, and an actuating rod connected with said arm and when moved longitiulinally in onedirection imparting movement 7 to-said arm to drawupon said connection and move said plug to an opened position.

3. A Water cooled motor, a radlator for said motor, a drain cock for said radiator I position and yieldably iludinaland out of a closed hold closed, a bracket carried by said motor and extending vertially and 'g irovided with an outstanding foot, an arm pivoted to said toot and c1;- tending therefrom, a rod connecting); said plug with said arm, and an actuating rod connected with said arm and when drawn upon adapted to swing said arm to draw upon said connecting rod and more he plug),- to an opened position.

t. A water cooled motor, a radiator for said motor, a drain cock for said radiator having a control plug slidai'ile longitudinally oi the motor into and out ol? :1 closed posit-ion and yicldably held closed, a bracket carried by said motor and extending vertically and provided with an outstanding toot, an arm pivoted to said foot and extending horizontally therefrom, a rod connecting said plug with said arm, an abutment carried by said foot to limit rearward swinging ot' the arm, and an actuating rod. connected with said arm and when drawn upon adapted to swing said arm to draw upon said connecting rod and move the plug to an opened position.

5. A drain cock comprising a body having a fluid pas age formed therethrough, a neck extending nn said body and tornied with a bore extending through said body transversely ot the fluid passage and intersecting the fluid passage, the portion oi? the bore in said body being tapered away from the neck to form a plug seat, a tapered plug slidable in the tapered portion of said bore and having a stem extending through the neck and formed with a longitudinally extending slot, a pin carried by said neck and extending through. said slot to limit sliding of the plug, a spring coiled about said stein between the pin and plug and yieldably holding the plug wedged in the tapered portion of the bore to close the lluid passage, and means engaged with said slcln for draw ing said plug outwardly to an opened position.

6. A drain cock comprising a body hav ing a fluid passage formed thorethrough, a, neck GXLQDCllDg from said body and ioi'mod with a bore extending thron h said body having a control plug slidablo lo ly or the motor into transversely or the fluid passz'zigc and intersecting the :liuid passage, the portion of the bore in said body being tapered away from the neck to :torm a plug seat, a tapered plug slidable in the tapered portion of said bore and having a stern extending through the neck and formed with a longritinliually extending slot, a pin carried by said neck and extending through said slot to limit sliding oii' theplug, a. spring coiled about said stem with one end bearing; against said pin and its other end anchored to the stem adiacent said plug and yieldably retaining the Ill) plug wedged in the tapered portion of the bore in closing relation to the fluid passage, the neck having an opening in its under portion, and actuating means connected with the outer end portion of said stem to draw the plug outwardly against the action of said spring to an opened position.

7. A drain cock comprising a body having a fluid passageitorined therethrough, a neck extending from said body and formed with a bore extending through said body transversely of the fluid passage and intersecting the fluid passage, the portion of the bore in said body being tapered away from the neck to form a plug seat,a tapered plug slidable in the tapered portion of said bore and having a stem extending through the neck and formed with a longitudinally ex tending slot, a pin carried by said neck and extending through said slot to limit sliding of the plug, a spring coiled about said stem with one end bearing against said pin and its other end anchored to the stem adjacent said plug and yieldably retaining the plug wedged in the tapered portion of the bore in closing relation to the fluid passage, the neck having an opening in its under portion, a drawrod connected with the outer end of said stein, a bearing bracket, an arm pivoted to said bearing bracket and engaged with.

said rod, and an actuating rod connected with said arm.

In testimony whereof. I afhx my signature.

HENRY G. GREEN. 11L. s] 

